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ABB RDCU-12C (3AUA0000036521) Core Control Unit for ABB ACS800 Series Inverter

RDCU-12C is flagship drive control unit of ABB ACS800 inverter platform, core CPU board installed inside ACS800 single drive & multi-drive cabinet, manufactured by ABB Finland factory, 32-bit high-speed processor core, industrial anti-vibration conformal coating PCB design, fully compliant IEC industrial drive standard.

1.Drive Control Algorithm: Native DTC Direct Torque Control + V/F scalar control, support open/closed loop motor control via incremental encoder feedback (TTL/HTL signal), high dynamic speed regulation for asynchronous & synchronous motor;

2.Onboard Standard I/O Configuration:

-7 isolated Digital Input (24VDC, hardware 1ms filter);

-3 relay changeover Digital Output (max 2A@230VAC for contactor/indicator);

-3 Analog Input:1×±10V differential,2×4-20mA isolated;

-2 Analog Output (4-20mA/0-10V for frequency/current analog feedback);

3.Protection Logic: Built-in overcurrent, overvoltage, undervoltage, overload, earth fault, IGBT overheat, CT break monitoring protection, real-time fault code recording;

4.Communication Design: Standard fiber optical port to power module for high-speed drive data; external slot for optional fieldbus adapters: PROFIBUS-DP, CANopen, Modbus, DeviceNet; front RJ45 serial port for DriveWindow parameter commission & fault log download.

Plug-in snap-in installation design, quick disassembly without cabinet wiring change, direct pin-to-pin swap replacement for faulty original RDCU-12C unit. 

1.Mining & Metallurgy:ACS800 multi-drive for rolling mill, conveyor, large main motor drive spare replacement;

2.Power Plant:Boiler fan, feed water pump, induced draft fan ACS800 inverter maintenance spare;

3.Oil & Petrochemical:Compressor, pump group ACS800 drive cabinet repair;

4.Water Treatment:Large sewage pump, intake pump ACS800 single drive retrofit & breakdown replacement;

5.Port & Cement Industry:Belt conveyor, ball mill ACS800 inverter old project spare stock.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.